General description This 1/2-inch square drive extension bar is designed to extend the reach of your socket wrench. It is made from high-quality chrome vanadium steel, which is hardened, tempered, and chrome plated to resist corrosion. The extension bar features a spring-loaded ball bearing to securely hold the socket in place during use, making it suitable for professional applications. Technical specifications Length: 125mm Drive size: 1/2 inch Material: Chrome vanadium steel Finish: Chrome plated for corrosion resistance Standards: DIN 3123 Form D / ISO 3316 Compatibility and accessories Compatible with 1/2-inch drive sockets and ratchets Sold separately: sockets, ratchets, and other drive tools Installation Insert the extension bar into your socket or ratchet drive Ensure the spring-loaded ball bearing clicks into place to secure the socket Usage Use to extend the reach of your socket wrench for hard-to-access areas Apply appropriate torque and avoid overloading to prevent damage